190657864 has 16 divisors (see below), whose sum is σ = 359089920. Its totient is φ = 94900560.

The previous prime is 190657777. The next prime is 190657877. The reversal of 190657864 is 468756091.

190657864 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×190657864² = 72700842210084992, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 51652 + ... + 55219.

It is an arithmetic number, because the mean of its divisors is an integer number (22443120).

Almost surely, 2^190657864 is an apocalyptic number.

It is an amenable number.

190657864 is a deficient number, since it is larger than the sum of its proper divisors (168432056).

190657864 is a wasteful number, since it uses less digits than its factorization.

190657864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107100 (or 107096 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 46.

The square root of 190657864 is about 13807.8913668960. The cubic root of 190657864 is about 575.5524510223.

The spelling of 190657864 in words is "one hundred ninety million, six hundred fifty-seven thousand, eight hundred sixty-four".